@media (max-width: 1199px){

}
@media (max-width:400px){
    html {
        font-size:1rem;
    }


.header__nav {
    overflow: auto;
    margin: 10px 10px 0px 0px;
    background: gold;
    position: relative;
}

.header__nav-item:hover {
    color: #f03131;
}
.header__nav-item-tip{
    display: none;
}

.header__nav-item {
    padding: 0 20px;
    font-size: 14px;
    float: left;
    width: 60px;
    text-align: center;
    line-height: 40px;
}

.header__nav-item-tip {
    width: 60px;
    height: 2px;
    background: red;
    position: absolute;
    left: 20px;
    bottom: -2px;
}

.header__nav-item_custom_button {
    color: #fff;
    background: #000;
    width: 60px;
    margin: 0 20px;
    border-radius: 5px;
}

.header__nav-item_custom_button:hover {
    color: #fff;
}
.screen-1 {
    color: rgb(255,255,255);
    height: 800px;
    background-color: #ececec;
    text-align: center;
    background: url(../img/bg-screen-1.jpg) no-repeat center bottom;
    background-size:cover;
    position: relative;
}
.screen-1__wrap {
    margin: 0px auto;
    height: 100%;
    position: relative;
    overflow: hidden;
}
.screen-1__heading {
    position: absolute;
    top: 160px;
    width: 100%;
    font-size: 3rem;
}
.screen-1__phone {
    position: absolute;
    bottom: 180px;
    width: 1375px;
    height: 305px;
    left: 50%;
    margin-left: -687px;
    background: url(../img/screen-1-phone.jpg) no-repeat center ;
    background-size: cover;
    z-index: 1;
}
.screen-1__shadow {
    position: absolute;
    bottom: 30px;
    width: 1233px;
    height: 411px;
    left: 50%;
    margin-left: -616px;
    background: url(../img/screen-1-shadow.jpg) no-repeat center ;
}
}